1) large cutting height workface
大采高开采
1.
The balance structure of main roof and its action to immediate roof in large cutting height workface;
大采高开采上位岩层平衡结构及其对采场矿压显现的影响
2.
This paper introduces the state of the art and the development of thick seam mining techniques in details and the prominent achievements in top-coal caving and large cutting height workface in China.
详细介绍了我国厚煤层开采技术现状与发展历程,以及我国在放顶煤开采和大采高开采方面所取得的突出成绩。
2) long wall with top coal caving with great mining height
大采高综放开采
1.
Theory study on the load on support of long wall with top coal caving with great mining height in extra thick coal seam
特厚煤层大采高综放开采支架外载的理论研究
3) high cutting mining
大段高开采
1.
With the similar simulation test,a simulation study on the mining rate of a coal mining with the top coal weaken in different degree and under the high cutting mining condition was conducted.
通过相似模拟试验,对大段高开采条件下顶煤体靠底板侧煤体弱化程度不同情况下的工作面采出率进行了模拟研究。
4) high seam caving mining
大采高放顶煤开采
5) large mining height fully-mechanized face
大采高综采
1.
On the basis of the analysis,the mechanical model for large mining height fully-mechanized face is established.
介绍了大采高综采工作面的矿压观测方法,通过现场矿压观测成果,对大采高综采工作面矿压显现特征及其规律进行了详细分析,建立了大采高综采工作面力学模型,并对工作面顶板分类和支架选型的合理性作了初步研究。
6) large mining height workface
大采高采场
1.
The distribution laws of stress fields and plastic failure with the distance of coalface advance in the large mining height workface are simulated by means of FLAC3D software,and the stress value in each unit is obtained.
通过FLAC3D软件对大采高采场工作面推进过程中煤岩内部应力场分布规律及其塑性破坏进行了模拟,并提取了各个单元的应力值,以此分析了大采高采场支承压力的分布特征,得出大采高采场支承压力分布规律。
补充资料：开采
挖掘（矿物）：～石油ㄧ～地下资源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条